using System;
using System.Threading.Tasks;
using System.Windows;

namespace BetterEN5.UI
{
    public partial class ProgressDialog : Window
    {
        public ProgressDialog()
        {
            InitializeComponent();
            Loaded += (s, e) =>
            {
                var desktop = System.Windows.SystemParameters.WorkArea;
                Left = (desktop.Width - Width) / 2;
                Top = (desktop.Height - Height) / 2;
            };
        }

        public void UpdateStatus(string text, string detail = "")
        {
            Dispatcher.Invoke(() =>
            {
                StatusText.Text = text;
                if (!string.IsNullOrEmpty(detail))
                    DetailText.Text = detail;
            });
        }

        public async Task RunWithProgress(Func<ProgressDialog, Task> action)
        {
            try
            {
                await action(this);
                UpdateStatus("完成", "");
                await Task.Delay(500);
                DialogResult = true;
            }
            catch (Exception ex)
            {
                UpdateStatus($"失败: {ex.Message}", "");
                await Task.Delay(1500);
                DialogResult = false;
            }
            Close();
        }

        public static async Task<bool> Show(Window owner, string title, Func<ProgressDialog, Task> action)
        {
            var dialog = new ProgressDialog();
            dialog.Owner = owner;
            dialog.Title = title;
            dialog.Show();
            await dialog.RunWithProgress(action);
            return dialog.DialogResult ?? false;
        }
    }
}